KR960006591A - How to provide subtitles in teletext - Google Patents

Abstract

If many subtitle pages on the same channel are sent to provide some language, there will be-to keep viewers flexible in assigning page numbers to languages, and-to easily ask viewers for subtitle pages by selecting only the language name. After the channel is changed, the intelligent decoder needs to find the previously selected subtitle page simply by storing only the language number. All pages containing subtitle information in different kinds of languages will be listed in one table called the Initial Subtitle Table (IST). The IST may include a language name, language number, and beige number to be required for up to 15 languages and may be displayed as a regular teletext page. Language numbers 1 to 15 may be stored as channel parameters that indirectly store the appropriate page numbers for each channel to enable very economical use of the EEPROM. After the channel changes the page, transferring the desired subtitle information will automatically be requested via the stored language number to refer to the IST page. Any new subtitle language can be selected using an IST page and a simple viewer interface, ie a vertical cursor. An improved error detection method is performed for transmitting language numbers and page numbers; Two variants of the digits associated with the original and complementary signals are transmitted. This system makes it easy to select subtitles for each available language and spends less decode.

Description

How to provide subtitles in teletext

Since this is an open matter, no full text was included.

Claims (9)

A method for providing subtitles in a teletext system, wherein all pages containing information subtitled in different languages are made into one or more lists indicating an initial subtitle table (IST). The method of claim 1, wherein the IST includes a language name, a language number, and a page number to be required for up to 15 languages, and can be represented as a standard teletext page. The language code according to claim 1 or 2, wherein the language numbers (1 to 15) can be stored as channel parameters that indirectly store the appropriate subtitle page number for each channel, which enables very economical use of the EEPROM. Subtitle providing method of the teletext system. The teletext of any one of claims 1 to 3, wherein after the channel changes the page, conveying subtitle information of the desired language is automatically requested via the stored language number to refer to the IST page. How to provide captions in the system. 5. A method according to any one of the preceding claims, wherein any new subtitle language can be selected using an input of an IST page and a simple viewer interface, i.e., the displayed language number. 6. An improved error detection method according to any one of claims 1 to 5, wherein an improved error detection method has been carried out for transmitting the language code and the page number; A method for providing subtitles in a teletext system, characterized in that two variants of the original digit and the complement digit are transmitted. 7. A method according to any one of the preceding claims, wherein two different IST pages, each containing a list of individual languages, are transmitted in order to cope with both Eastern and Western European languages. . 8. The method according to any of the preceding claims, wherein the IST page for Western Europe will be sent to page numbers $ 1F9,0000 or $ 1F9,3F7F as test codes and page numbers $ 1F8,0000 or $ 1F8,3F7F Subtitle providing method of a teletext system, characterized in that the IST page for. 9. The method of any of claims 1-8, wherein any additional IST indicative of another language category is selected from pages 1F7, 1F6... Etc., and all ISTs have a maximum of 17 rows of headers combined. ※ Note: The disclosure is based on the initial application.